GraphWidget.hh

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/*

    Widget for drawing graphs in realtime
    Copyright (C) 2003 Jussi Laako

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/


#include <gdk/gdk.h>
#include <gtk/gtk.h>

#include "Exception.hh"


#ifndef GRAPHWIDGET_HH
#define GRAPHWIDGET_HH

    #define GRAPHWIDGET_MARGIN_TOP      10
    #define GRAPHWIDGET_MARGIN_LEFT     50
    #define GRAPHWIDGET_MARGIN_BOTTOM   25
    #define GRAPHWIDGET_MARGIN_RIGHT    10


    class clGraphWidget
    {
            class clXGraphWidget : public clException
            {
                public:
                    clXGraphWidget (const char *cpErrorMsg, 
                        int iErrorCode = 0) throw() :
                        clException(cpErrorMsg, iErrorCode)
                        { }
            };

            long lWidth;
            long lHeight;
            long lMarginTop;
            long lMarginLeft;
            long lMarginBottom;
            long lMarginRight;
            long lGraphWidth;
            long lGraphHeight;
            double dXLeft;
            double dXRight;
            double dYBottom;
            double dYTop;
            double dXRange;
            double dYRange;

            GtkWidget *gwParent;
            GtkWidget *gwDrawingArea;

            void MapToDisplay (int *, int *, double, double);
        public:
            clGraphWidget ();
            ~clGraphWidget ();
            GtkWidget * Create (GtkWidget *);
            GtkWidget * GetPtr ()
                { return gwDrawingArea; }
            void SetSize (int, int);
    };

#endif

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